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How do I copy a hash in Ruby?
...oning a hash is preventing modification of the original (for immutability, etc).
– K. Carpenter
Feb 10 '15 at 2:24
6
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How can one print a size_t variable portably using the printf family?
...nu says %zu (or %zx, or %zd but that displays it as though it were signed, etc.)
Microsoft says %Iu (or %Ix, or %Id but again that's signed, etc.) — but as of cl v19 (in Visual Studio 2015), Microsoft supports %zu (see this reply to this comment)
...and of course, if you're using C++, you can u...
How to install the JDK on Ubuntu Linux
...lete, set environment variables as follows.
Edit the system path in file /etc/profile:
sudo gedit /etc/profile
Add the following lines at the end.
JAVA_HOME=/usr/lib/jvm/jdk1.7.0
PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
export JAVA_HOME
export PATH
Source: http://javaandme.com/
...
How do I clone a range of array elements to a new array?
...izer as appropriate - XmlSerializer, DataContractSerializer, protobuf-net, etc.
Note that deep clone is tricky without serialization; in particular, ICloneable is hard to trust in most cases.
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PHP mkdir: Permission denied problem
...er window and from the menu bar, choose Go > Go To Folder > /private/etc/apache2
now open httpd.conf
find:
User _www
Group _www
change the username:
User <YOUR LOGIN USERNAME>
Now restart apache by running this form terminal:
sudo apachectl -k restart
If it still doesn't work...
Android - Package Name convention
...ention. http is from org.apache.http, Andengine is org.anddev.andengine, etc etc.
– Eric
Jun 8 '11 at 3:47
What are ...
What is the preferred Bash shebang?
...e if the script's shebang is one of the others with no arguments (/bin/sh, etc).
– Kurtosis
May 3 '12 at 2:23
...
Get name of current class?
...:
__metaclass__ = InputAssigningMetaclass
class foo(MyBaseFoo):
# etc, no need to create 'input'
class foo2(MyBaseFoo):
# etc, no need to create 'input'
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...
The key must be an application-specific resource id
...
Well, the 1 + 2 << 24, 2 + 2 << 24 etc approach actually works. Looks like an irregular fix. I like to know why it is like this? Are there any risks, for instance in future versions of Android etc? It is by far smother to use it defined as a constant?
...
Hiding a password in a python script (insecure obfuscation only)
...version - peekaboo.pyc - by importing this module (via python commandline, etc...).
Now, delete peekaboo.py.
You can now happily import peekaboo relying only on peekaboo.pyc. Since peekaboo.pyc is byte compiled it is not readable to the casual user.
This should be a bit more secure than base64 d...